79 lines
2.4 KiB
Objective-C
Executable File
79 lines
2.4 KiB
Objective-C
Executable File
//
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// UINavigationBar+Background.m
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// CustomNavicationController
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//
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// Created by YiJiang Chen on 15/10/22.
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// Copyright (c) 2015年 YiJiang Chen. All rights reserved.
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//
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#import <objc/runtime.h>
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#import "UINavigationBar+Background.h"
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@implementation UINavigationBar (Background)
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static char overlayKey;
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- (UIView *)overlay
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{
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return objc_getAssociatedObject(self, &overlayKey);
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}
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- (void)setOverlay:(UIView *)overlay
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{
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objc_setAssociatedObject(self, &overlayKey, overlay, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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- (void)cnSetBackgroundColor:(UIColor *)backgroundColor
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{
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if (!self.overlay) {
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[self setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
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self.overlay = [[UIView alloc] initWithFrame:CGRectMake(0, -20, [UIScreen mainScreen].bounds.size.width, CGRectGetHeight(self.bounds) + 20)];
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if (@available(iOS 11.0, *)) {
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self.overlay = [[UIView alloc] initWithFrame:CGRectMake(0, -44, [UIScreen mainScreen].bounds.size.width, CGRectGetHeight(self.bounds) + 44)];
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} else {
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self.overlay = [[UIView alloc] initWithFrame:CGRectMake(0, -20, [UIScreen mainScreen].bounds.size.width, CGRectGetHeight(self.bounds) + 20)];
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}
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self.overlay.userInteractionEnabled = NO;
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self.overlay.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight;
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[self insertSubview:self.overlay atIndex:0];
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}
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self.overlay.backgroundColor = backgroundColor;
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}
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- (void)cnReset
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{
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[self setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
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[self.overlay removeFromSuperview];
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self.overlay = nil;
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}
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-(void)setClearNav
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{
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[self setBackgroundImage:[[UIImage alloc] init] forBarMetrics:UIBarMetricsDefault];
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//设置那条横线直接隐藏
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self.shadowImage = [[UIImage alloc] init];
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if (self.overlay) {
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[self.overlay removeFromSuperview];
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self.overlay = nil;
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}
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}
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-(void)resetBackgroundImage{
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[self setBackgroundImage:[UIImage imageNamed:@"blackbar.png"] forBarMetrics:UIBarMetricsDefault];
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[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent animated:NO];
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}
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-(void)setWhiteNav
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{
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[self setBackgroundImage:[UIImage imageNamed:@"blackbar_white.png"] forBarMetrics:UIBarMetricsDefault];
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[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault animated:NO];
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}
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@end
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